linux-kernel - Re: [PATCH 00/12] Add support for BCM2712 DMA engine

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Message-ID: <ZcM9I-U3w7xRcWVt@matsya>
Date: Wed, 7 Feb 2024 09:19:47 +0100
From: Vinod Koul <vkoul@...nel.org>
To: Andrea della Porta <andrea.porta@...e.com>
Cc: Florian Fainelli <florian.fainelli@...adcom.com>,
	Ray Jui <rjui@...adcom.com>, Scott Branden <sbranden@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	dmaengine@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Maxime Ripard <maxime@...no.tech>,
	Dom Cobley <popcornmix@...il.com>,
	Phil Elwell <phil@...pberrypi.com>
Subject: Re: [PATCH 00/12] Add support for BCM2712 DMA engine

On 04-02-24, 07:59, Andrea della Porta wrote:
> This patchset aims to update the dma engine for BCM* chipset with respect
> to current advancements in downstream vendor tree. In particular:
> 
> * Added support for BCM2712 DMA.
> * Extended DMA addressing to 40 bit. Since BCM2711 also supports 40 bit addressing,
> it will also benefit from the update.
> * Handled the devicetree node from vendor dts (e.g. "dma40").
> 
> The only difference between the application of this patch and the relative code
> in vendor tree is the dropping of channel reservation for BCM2708 DMA legacy
> driver, that seems to have not made its way to upstream anyway, and it's
> probably used only from deprecated subsystems.
> 
> Compile tested and runtime tested on RPi4B only.
> 
> Dom Cobley (4):
>   bcm2835-dma: Support dma flags for multi-beat burst
>   bcm2835-dma: Need to keep PROT bits set in CS on 40bit controller
>   dmaengine: bcm2835: Rename to_bcm2711_cbaddr to to_40bit_cbaddr
>   bcm2835-dma: Fixes for dma_abort
> 
> Maxime Ripard (2):
>   dmaengine: bcm2835: Use to_bcm2711_cbaddr where relevant
>   dmaengine: bcm2835: Support DMA-Lite channels
> 
> Phil Elwell (6):
>   bcm2835-dma: Add support for per-channel flags
>   bcm2835-dma: Add proper 40-bit DMA support
>   bcm2835-dma: Add NO_WAIT_RESP, DMA_WIDE_SOURCE and DMA_WIDE_DEST flag
>   bcm2835-dma: Advertise the full DMA range
>   bcm2835-dma: Derive slave DMA addresses correctly
>   dmaengine: bcm2835: Add BCM2712 support
> 
>  drivers/dma/bcm2835-dma.c | 701 ++++++++++++++++++++++++++++++++------
>  1 file changed, 588 insertions(+), 113 deletions(-)

Everything is modifying one file and still you have 2 different tags for patches, why?

Consistency is a good thing, right...

-- 
~Vinod